Death Strategist

This is a chaotic world. In a world where technology and cultivators once coexisted peacefully, the invasion of chaotic beasts gave birth to some abnormally powerful creatures. Beings who should have departed after achieving godhood were unable to leave after being infected by the chaotic beasts. They could not be killed off, nor could they be eliminated. In the end, they provoked the mighty beings in the star sea to seek the destruction of the Extreme North Star. What kind of mysterious existence could, in this ultra-high-difficulty world, preserve the Extreme North Star and repel the chaotic beasts? — Description from novelcodex.org